CPA & CAC Calculator
Answer first: CPA = Ad spend ÷ Conversions and CAC = Total sales & marketing ÷ New customers. Stay under your max profitable CPA (profit per order).
CPA counts conversions; CAC counts customers and includes all sales & marketing costs.
Results
| Metric | Value |
|---|---|
| CPA (cost per acquisition) | — |
| CAC (customer acquisition cost) | — |
| Max profitable CPA | — |
Enter your numbers to see results.
Common mistakes
- Using CPA and CAC interchangeably — a customer can place several orders.
- Leaving salaries, tools, and creative costs out of CAC.
- Comparing CPA to revenue instead of to profit per order.
FAQ
What is the difference between CPA and CAC?
CPA is the cost of one conversion (often one order); CAC is the fully-loaded cost to win one new customer.
What is a good CAC?
It depends on lifetime value — aim for an LTV:CAC ratio of 3 or higher.